809008424 has 24 divisors (see below), whose sum is σ = 1764547290. Its totient is φ = 346717728.

The previous prime is 809008423. The next prime is 809008477. The reversal of 809008424 is 424800908.

It can be written as a sum of positive squares in only one way, i.e., 741472900 + 67535524 = 27230^2 + 8218^2 .

It is not an unprimeable number, because it can be changed into a prime (809008423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1031507 + ... + 1032290.

Almost surely, 2^809008424 is an apocalyptic number.

It is an amenable number.

809008424 is an abundant number, since it is smaller than the sum of its proper divisors (955538866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

809008424 is a wasteful number, since it uses less digits than its factorization.

809008424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063817 (or 2063806 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 809008424 is about 28443.0733923041. The cubic root of 809008424 is about 931.7892190357.

The spelling of 809008424 in words is "eight hundred nine million, eight thousand, four hundred twenty-four".